Bicycle-seat



(No Mdel.)

'C. H. CLARK. BICYCLE SEAT.

No. 568,474. y Patented Sept. 29, 1896.-

E norms Pneus to. wnoufuo.. WASHINGTON, D. c,

UNITED STATES PATENT OFFICE.

CHARLES H. CLARK, OF ROCHESTER, NEV YORK, ASSIGNOR TO THE BUNKER SADDLECOMPANY, OF CHICAGO, ILLINOIS.

BICYCLE-SEAT. Y

SPECIFICATION forming part of Letters Patent No. 568,474, datedSeptember 29, 1896.

Application filed November 14, 1895. Serial No. 568,918. (No model.)

To all whom it may concern:

Be it known that I, CHARLES I-I. CLARK, of

,-'Rochesten in the county of Monroe and State of New York, haveinvented a certain new and useful Improvement in Bicycle-Seats; and I dohereby declare that the following is a full, clear, and exactdescription of the same, reference being had tothe drawings accompanyingthis application.

My improvement relates to pneumatic seats; and it consists in theconstruction and arrangement of parts hereinafter described and claimed,whereby the front part of the pad is divided and rests uponv a double-inclined base-plate in such a manner as to accommodate the legs of therider, as hereinafter more fully set forth.

In the drawings, Figure 1 is a plan View of the seat. Fig. 2 is an underside view of the same. Fig. 3 is a side elevation. Fig. 4 is an enlargedcross-section in line a: w of Fig. 1.

A indicates the base, which consists of a thin plate of metal bent intosuitable form to give shape to the seat. This plate is punched with aseries of marginal holes a a and another set of central holes a o alongthe major axis in front to receive the stitching that secures theleather covering B to the plate. The seat is made of the usual form,being wide at the rear to receive the rider, and narrow at the front toallow passage of the legs on both sides.

C is the pneumatic tube inside the leather covering and resting on topof the base-plate. It is made of a single piece of rubber tube, the endsof which lie in front on top of the narrow portion of the base-plate,While the rear portion is bent around to conform to the enlargement ofthe rear of the seat. The two ends are closed, and when the tube isinflated through the ordinary7 nozzle b the tube expands and enlarges atthe rear to fill the space, as indicated by the dotted lines in Fig. 1.

The two front ends of the inflatable tube and the exterior leathercovering are independent of each other, leaving a space c between themextending back to thecenter of the seat, where an opening d is madethrough the pad and also the base-plate for purposes and this nozzle maybe located at any desired position.

By the separation of the two ends of the tube an open space is left,between which is received the prostate gland of the rider, thusrelieving the great pressure and discomfort 6o that arises in the use ofthe ordinary closed seat. This space extends clear back to the center ofthe seat and the rear of the seat is enlarged, forming pads on oppositesides to receive and support thebones of the pelvis. 6 5

The design of the separated ends of the tube is to leave them free, sothat in the movements of the legs up and down said ends will move freelylaterally to accommodate the action, thereby reducing the friction andpre- 7o venting ohang and obviating to a great degree wear upon theclothing. This action of the ends of the separate tubes is supplementedby the form of the end of the baseplate, which is convex incross-section or inclined like a roof transversely, as shown at g g inFig. 4. The separate ends of the tube roll up and down on these inclinedsurfaces, as indicated by the arrows in said Fig. 4.

Having described my invention, what I 8o claim as new, and desire tosecure by Letters Patent, is-

l. In a bicycle-seat, the combination of a base-plate Wide in the rearnarrow in front and convex in cross-section; an iniiatable tubeconsisting of a single length bent double,

the free ends resting on opposite inclined sides of the convex end ofthe plate and the bent portion occupying the rear Wide portion of thesame, and a Acovering inclosing the 9o tube and seamed down to the platebetween the ends of the tube, thereby leaving them free to movelaterally on the inclined plate as herein shown and described.

2. A bicycle-seat, consisting of a base-plate,

an inflatable tube and an exterior covering; the plate being wide inrear, narrow in front, the narrow end being convexin cross-section 5vThe leather covering is car- 5o and the tube and covering being doubled,the free ends extending along the narrow part of In witness whereof Ihave hereunto signed.

my name in the presence of two subscribing CIIAS. II. CLARK. fit-nesses:

R. F. OSGOOD, F. B. IIUTCHINSON.

